That's My Line is a summer CBS reality show developed by Mark Goodson. Conceived in response to the success of NBC's Real People and ABC's That's Incredible!, That's My Line borrowed its name from one of Goodson and Bill Todman's earlier productions, the panel game What's My Line?, and shared its central conceit of highlighting average people with unusual occupations. Unlike the earlier show, That's My Line had no panel or game components, instead being centered around interviews and demonstrations. The series ran as a summer replacement series for two abbreviated seasons in 1980 and 1981.